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This is The Most Expensive Thing That I Have Repaired
That day, Professor told me to start learning about power side-channel attacks. Our lab has some ChipWhisperer lite kits, and I took one. I took the course and learned how to do CPA and DPA with invasive methods, which we need to connect physically to the victim chip to measure the power trace. I did…
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Problem When Building Old OpenSSL Version on The New System
The old OpenSSL seems to have a problem when built using a newer system. I got this problem when compiling OpenSSL 1.1.0f on my Ubuntu 22.04. For example in my case here the problem is in line 17 on Configure file and the line were like this: Some people tried changing the lines with qw/glob/…
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How to Access SOM9331 Serial Console in Linux
I got this old hackable mini router board. It comes with OpenWRT but I can’t seem to connect this via USB Serial. It turns out that the driver is not installed. Installation is quick but there is a minor change needed in order to build the driver on a recent kernel. So will write here…
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Now I Understand: What is Oblivious RAM?
ORAM is the acronym of an Oblivious Random-Access Machine. The main idea is to hide the access patterns from attackers. For example, when a client tries to access data stored in the server, the server cannot gain any information about the user access pattern. Imagine data storage, where each data is inside a block, and…
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Easy Fix when Pop-OS Login Screen Shown on The Wrong Monitor
I turned on my newly installed Pop OS and then suddenly the login screen is located on the left monitor. It’s horrible! Because I put my left monitor into a vertical position, and the Pop OS login screen orientation is in horizontal mode. Therefore I had to tilt my head -90 degrees to type my…
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How to Run Linux on RISCV in Arty A7-100T FPGA
It’s been tempting for me to try running open-source software on top of open-source hardware. SiFive provides a bitstream for Arty A7 called Freedom, but it seems that the repository is dead now. The other interesting alternative to try is VexRiscv, and everyone keeps posting about Arty A7 35T while I only have the 100T…
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How to Cut and Download Youtube Videos using Command Line
In some of my free time, I am actively using Instagram, not to show off or seeing people’s life that I don’t even care about. For me, this social media is perfect for everyday reminders for positive feeds. Usually, people choose a youtube video at the best moment, then re-post it on Instagram as a…
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Git Pristine: How to Pristine Clean Your Dirty Git Repository
I found this command useful and I love this alias! git pristine, a command that will wipe any dirt on your local git copy, any untracked files, and the cache will be removed to make it pristine clean as the remote origin.
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Simple Way To Change Pop Os Default Login Monitor
I use three monitors, one of which is in a vertical position. Sometimes the login screen on Pop OS appears on the main monitor, sometimes it appears on a vertical monitor, but in a horizontal position. Like it or not, I have to log in with my head tilted. Although if you look at the…
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The RISCV ISA Documentation Is Better than RISCV Green Card
I hosted the RISCV ISA Documentation. This is really helpful if you want to learn about the assembly syntax or learning the RISCV itself. As a beginner, this documentation is more effective instead of constantly checking at the green card. 🙂
